Harsha Nagarajan

Staff Scientist

Biography

I am currently a staff scientist at the “Applied Mathematics and Plasma Physics” division in Los Alamos National Laboratory (LANL). Previously, I was a post-doctoral research associate at Center for Nonlinear Studies (CNLS), LANL.

My primary research interests include development of efficient formulations and algorithms for modeling, design and control of complex physical systems. Particularly, I utilize tools from a myriad of disciplines including, mathematical programming and optimization (convex and nonconvex), control theory and uncertainty quantification. In recent years, at LANL, I have been focussing on various interesting problems arising in large-scale energy infrastructure systems. I was recently awarded with the “Outstanding Reviewer 2019” recognition from IEEE Transactions on Power Systems.

Open Positions

Advanced Network Science Initiative at LANL is looking for motivated graduate students and postdoctoral research associates with interests in optimization, control theory, applied mathematics and energy systems. If working with talented scientists in a collaborative environment excites you, feel free to contact me.

Enforcing the Non-negativity Constraint and Maximum Principles for Diffusion with Decay on General Computational Grids [arXiv][online]H. Nagarajan, K.B. Nakshatrala International Journal for Numerical Methods in Fluids

Collaborations

In the challenging world of Science and Engineering with increasingly complex problems,
collaborative research is the key to success. I have been fortunate to have
collaborated with excellent mentors and researchers over the years.
Below is the list:

Softwares

Alpine - An Open-source Global MINLP Solver

Alpine.jl is a novel global optimization solver that uses an adaptive, piecewise convexification scheme and constraint programming methods to solve Mixed-Integer Non-Linear Programs (non-convex MINLPs) efficiently. Unlike many other state-of-the-art MINLP solvers, Alpine is entirely built on JuMP in Julia, which provides incredible flexibility for usage and further development.